Assumptions in research in sport and exercise psychology

ObjectivesThe aim of this article is to outline how certain key assumptions affect the quality and interpretation of research in quantitative sport and exercise psychology.MethodsA review of three common assumptions made in the sport and exercise psychology literature was conducted. The review focused on three assumptions relating to research validity and the treatment and interpretation of observations. A central theme to this discussion is the assumption that research observations reflect true effects in a population.ResultsAssumptions often made in sport and exercise psychology research were identified in three key areas: (1) validity, (2) inferences of causality, and (3) effect size and the “practical significance” of research findings. Findings indicated that many studies made assumptions about the validity of the self-report psychological measures adopted and few provided a comprehensive evaluation of the validity of these measures. Researchers adopting correlational designs in sport and exercise psychology often infer causality despite such conclusions being based on theory or speculation rather than empirical evidence. Research reports still do not include effect size statistics as standard and confine the discussion of findings to statistical significance alone rather than commenting on “practical significance”.ConclusionResearch quality can only be evaluated with due consideration of the common assumptions that limits empirical investigation in sport and exercise psychology. We offer some practical advice for researchers, reviewers, and journal editors to minimise the impact of these assumptions and enhance the quality of research findings in sport and exercise psychology.     

Evolutionary sport and exercise psychology: Integrating proximate and ultimate explanations

ObjectivesThis review aims to demonstrate the utility of integrating the insights of evolutionary psychology with sport and exercise psychology. Specifically, we offer a primer on evolutionary psychology that we then discuss in the context of several research avenues in sport and exercise. Next, we discuss how evolutionary psychology can inform our understanding of sporting culture.DesignReview paper.MethodsTheory and research are selectively reviewed in efforts to demonstrate the utility and limits of evolutionary psychology as an approach to sport and exercise psychology.Results and conclusionsEvolutionary psychology offers researchers in sport and exercise psychology an improved capacity to produce proximate explanations (i.e., how psychological mechanisms interact with the environment to produce behavior) by generating productive and novel hypotheses from ultimate explanations (i.e., why a psychological mechanism evolved a particular design; Tooby & Cosmides, 1992, 2005). The worth of integrating proximate and ultimate explanations is demonstrated by the ensuing novel insights of popular avenues of sport and exercise psychology including (a) the interrelation between motivation and reasoning and their relative influence on exercise behavior, (b) sex differences in sport participation, (c) performance in sport, and (d) group dynamics in sport. Unlike specific fields of psychology, evolutionary psychology is a metatheoretical approach that can foster mutually productive linkages between currently disparate areas within sport and exercise psychology, and with neighboring disciplines.     

What in the world is happening in sport psychology

Abstract

The field of sport psychology is advancing at a rapid rate in many parts of the world, considering the numbers of journals and scholarly articles being produced, the formation of professional societies, and the educational and interventional services being provided to participants in sport and exercise programs. One international direction in sport psychology research is the study of cognitive processes associated with excellence in performance. Cognitive and psychological loads associated with different activities are being determined in order to identify how best to optimize such loads. With a comparison of expert and novice performers, especially under laboratory sport-simulated conditions, researchers are learning more about how individuals possessing different levels of skill manage and respond to information present in the performance situation. Cognitive considerations in the learning and performing of sports skills are receiving more attention by the sport psychology researcher as well as by the consultant.     

Regulate to facilitate: A scoping review of prefrontal asymmetry in sport and exercise

BackgroundPrefrontal asymmetry (PFA) describes the relative activity of the right PFC compared to the left PFC. It has been shown that PFA is associated with affective and motivational variables in several contexts, including sport and exercise. Considering the significant roles of affect and motivation in different performance settings, PFA might also be an important indicator of athletic performance. However, the relevance of PFA in the sport and exercise setting has not yet been addressed in its entirety. Instead, previous systematic reviews have solely focused on affective variables. Mapping out the complex interactions between PFA and affective, motivational as well as performance variables could help to understand what determines successful athletic performance as well as the positive psychological effects associated with exercise.ApproachScientific databases were searched for quantitative studies in English language published in international peer-reviewed journals. All 27 selected studies assessed physical activity and measured PFA in the brain locations F4-F3 and/or F8-F7 using electroencephalography.FindingsThe majority of the studies used a non-athlete sample (78%) and exercise types were diverse. While all studies focused on affective or motivational processes, 19% also reported associations with performance. Even though findings are inconsistent, they support the assumption that PFA plays a role in self-regulation.ConclusionThere is evidence for an involvement of PFA in affective, motivational and performance processes in the sport and exercise setting that can be interpreted as regulatory mechanisms. Future research on the underlying mechanisms is warranted, in particular, associations with motivational processes and performance need to be investigated more explicitly.     

Methods for addressing publication bias in school psychology journals: A descriptive review of meta-analyses from 1980 to 2019

Although meta-analyses are often used to inform practitioners and researchers, the resulting effect sizes can be artificially inflated due to publication bias. There are a number of methods to protect against, detect, and correct for publication bias. Currently, it is unknown to what extent scholars publishing meta-analyses within school psychology journals use these methods to address publication bias and whether more recently published meta-analyses more frequently utilize these methods. A historical review of every meta-analysis published to date within the most prominent school psychology journals (N = 10) revealed that 88 meta-analyses were published from 1980 to early 2019. Exactly half of them included grey literature, and 60% utilized methods to detect and correct for publication bias. The most common methods were visual analysis of a funnel plot, Orwin's failsafe N, Egger's regression, and the trim and fill procedure. None of these methods were used in more than 20% of the studies. About half of the studies incorporated one method, 20% incorporated two methods, 7% incorporated three methods, and none incorporated all four methods. These methods were most evident in studies published recently. Similar to other fields, the true estimates of effects from meta-analyses published in school psychology journals may not be available, and practitioners may be utilizing interventions that are, in fact, not as strong as believed. Practitioners, researchers employing meta-analysis techniques, education programs, and editors and peer reviewers in school psychology should continue to guard against publication bias using these methods.     

A systematic review of interventions to promote growth following adversity

BackgroundAthletes experience adversity across many aspects of their lives. Challenging the dominant idea that adversity is just a negative experience, a significant body of research in sport has demonstrated that these adverse events can also act as catalysts for positive change (Howells, Sarkar, & Fletcher, 2017). Yet, a limited number of researchers have focused on how to promote growth following adversity in sport. To support this line of inquiry our aim in this study was to facilitate knowledge transfer from other psychology disciplines by systematically reviewing intervention studies that aim to foster growth following adversity.MethodsWe conducted the systematic review using PRISMA guidelines. Following inclusion and exclusion criteria, we appraised the studies using the Mixed Methods Appraisal Tool (Pluye & Hong, 2014).ResultsThirty-six studies were included in the review. We synthesized the studies in relation to participant characteristics (i.e., sample size, age, gender, ethnicity, adversity), study characteristics (i.e., design, content, duration, delivery, outcome measures), intervention outcomes (i.e., statistical significance, effect size, qualitative indicators of growth), antecedents (viz. mediators, moderators), and quality appraisal.ConclusionIn the discussion we critically consider the lessons sport and exercise psychology researchers can learn from published intervention studies from other fields of research (e.g., the use of meaningful metrics, that there are different trajectories of growth, growth is a multidimensional phenomenon). Future researchers should seek to build on findings to advance knowledge and understanding in the most significant and meaningful ways.     

Authorship and sampling practice in selected biomechanics and sports science journals

In some biomedical sciences, changes in patterns of collaboration and authorship have complicated the assignment of credit and responsibility for research. It is unclear if this problem of "promiscuous coauthorship" or "hyperauthorship" (defined as six or more authors) is also apparent in the applied research disciplines within sport and exercise science. This study documented the authorship and sampling of patterns of original research reports in three applied biomechanics (Clinical Biomechanics, Journal of Applied Biomechanics, and Sports Biomechanics) and five similar subdisciplinary journals within sport and exercise science (International Journal of Sports Physiology and Performance, Journal of Sport Rehabilitation, Journal of Teaching Physical Education, Measurement in Physical Education and Exercise Sciences, and Motor Control). Original research reports from the 2009 volumes of these biomechanics and sport and exercise journals were reviewed. Single authorship of papers was rare (2.6%) in these journals, with the mean number of authors ranging from 2.7 to 4.5. Sample sizes and the ratio of sample to authors varied widely, and these variables tended not to be associated with number of authors. Original research reports published in these journals in 2009 tended to be published by small teams of collaborators, so currently there may be few problems with promiscuous coauthorship in these subdisciplines of sport and exercise science.     

The effectiveness of psychological skills training and behavioral interventions in sport using single-case designs: A meta regression analysis of the peer-reviewed studies

We used a novel meta regression analysis approach to examine the effectiveness of psychological skills training and behavioral interventions in sport assessed using single-case experimental designs (SCEDs). One hundred and twenty-one papers met the inclusion criteria applied to eight database searches and key sport psychology journals. Seventy-one studies reported sufficient detail for effect sizes to be calculated for the effects of psychological skills training on psychological, behavioral, and performance variables. The unconditional mean effect size for weighted (Δ = 2.40) and unweighted (Δ = 2.83) models suggested large improvements in psychological, behavioral, and performance outcomes associated with implementing cognitive-behavioral psychological skills training and behavioral interventions with a SCED. However, meta-regression analysis revealed important heterogeneities and sources of bias within this literature. First, studies using a group-based approach reported lower effect sizes compared to studies using single-case approaches. Second, the single-case studies, (over 90 per cent the effect sizes), revealed upwardly biased effect sizes arising from: (i) positive publication bias such that studies using lower numbers of baseline observations reported larger effects, while studies using larger numbers of baseline observations reported smaller – but still substantial – effects; (ii) not adopting a multiple baseline design; and (iii) not establishing procedural reliability. We recommend that future researchers using SCED’s should consider these methodological issues.     

Integrating sport psychology and sports medicine in research: The dilemmas

Abstract

The recent acceleration of interest in conducting sport psychology research within sports medicine settings has prompted an introspection on the stringency of sport injury-focused research protocols and methodology. Much of the literature relating to the psychology of sport injury is anecdotal, comprised of conjecture, or is an extrapolation from allied psychological study. In addition, retrospective studies, involving the recall of an unpleasant event (i.e., sport injury) proliferate the literature. Quality research that integrates sport psychology and sports medicine presents a unique challenge because of the multifactorial nature of sport injury and the necessity for sound interpretation of research outcomes relative to the nature of psychology. sport, and injury. Confounding and complicating aspects of this integrated research include definition of injury variables, timing of data collection. evaluation of pain. and the physiological sequelae of injury. Research and methodological issues relating to sport psychology and sport injury are discussed.     

Research quality considerations for grounded theory research in sport & exercise psychology

ObjectivesThe aims of this article are: to examine the application of grounded theory in sport and exercise psychology; to locate such applications within broader grounded theory methodological debates and; to support the future use and evolution of the method in the field.MethodsA search of the four sport and exercise psychology journals with the highest impact factors in 2007 (Psychology of Sport and Exercise, Journal of Sport and Exercise Psychology, Journal of Applied Sport Psychology and The Sport Psychologist) using the search term “grounded theory” and the date parameters 2000–2008 was conducted. These articles were discussed in relation to research quality concerns for grounded theory at the micro- and macro-level.ResultsTwelve articles were returned from the search. At the micro-level, eight elements representing collective sufficient conditions for grounded theory were discussed, which only two of the twelve articles returned met. Examples of common mistakes in relation to these elements were provided from the twelve articles. At the macro-level, the ontological and epistemological debates surrounding variants of grounded theory were discussed. Only one of the twelve articles explicitly recognised that there are variants of grounded theory, whilst the potential to generate more generic formal theory, and thus make a wider contribution to bodies of knowledge, was not discussed in any of the articles.ConclusionsThere are research quality concerns regarding the application of grounded theory in sport and exercise psychology at the micro- and macro-level, largely linked to a lack of understanding of the methodology and its implementation. Suggestions to address this for editors, reviewers and authors are offered.     

Profile of Mood States Research in Sport and Exercise Psychology: Past,Present, and Future

Abstract

A review was conducted of the sport and exercise literature for the years 1971 to early 1998 in which the Profile of Mood States (POMS) figured prominently. Analyses indicated that there were 258 published articles in which the POMS was used with athletic or exercise samples during this time period. Of these articles, 226 were data-based and the remainder dealt with general, theoretical, or psychometric issues. Prominent journals publishing the data-based research, leading authors, sport samples used, gender issues, and temporal trends in the use of the POMS were noted. Anticipated future developments include: improvements in research methodologies used to study relationships among sport, exercise, and mood; continued validation of abbreviated forms of the scale as well as a form for use with youth samples; and increased utilization of the POMS for mood profiling.     

Sport Psychology Foundations,Organizations, and Related Resources

SUMMARY

The purpose of this article is to introduce psychologists and counselors who work in schools to the field of applied sport psychology. We begin with a brief history of how applied sport psychology developed in North America and other parts of the world. Landmark events such as the development of conferences, professional organizations and scholarly publications are described. This is followed by a discussion of the breadth of services that are typically provided by sport psychologists. The third section examines some of the current issues related to the training of sport psychologists. The final section introduces the reader to organizations, journals, texts, and on-line resources so they may learn more about the theory, research, and practice of Sport psychology.     

Narrative inquiry in sport and exercise psychology: What can it mean,and why might we do it?

ObjectivesNarrative inquiry is one form of qualitative research that is burgeoning within the human sciences. However, in sport and exercise psychology little attention has been given to this approach. In this article, we seek to rectify this situation by offering an understanding of what narrative inquiry can be.ResultsIn order to begin to better understand what narrative inquiry as a methodology can be, and gain some theoretical purchase on a difficult field without aiming for a final answer, we first define narrative. Next, a distillation of guiding assumptions and characteristics are offered. Finally, some reasons as to why narratives may be of benefit for the field of sport and exercise psychology are highlighted.ConclusionNarrative inquiry is a useful and important way of theorising and doing research in the domain of sport and exercise psychology. It should not, however, be taken up or practised simply because it is new or fashionable. Informed, principled, and responsible choices must be made by researchers and applied professionals about why and when they might engage with narrative inquiry should they wish to do so.     

Developing mixed methods research in sport and exercise psychology: Critical reflections on five points of controversy

ObjectivesTo stimulate debate in sport and exercise psychology about the nature of mixed methods research as currently practiced and how this approach might develop in the future.DesignAn exploration of five points of controversy relating to mixed methods research.MethodA presentation of critical reflections on the following. (1) Mixing methods as a non-debate, (2) Purists, pragmatists and mixing paradigms, (3) Integrating findings and representational forms, (4) Judgment criteria and mixed methods research, and (5) Power, politics and what counts in mixed methods research.ResultsThe examples provided of mixed methods research in action indicate that a number of problematic issues regarding both process and product have been neglected.ConclusionsMixed methods research offers a number of conceptual, practical and pedagogical challenges that need to be addressed if this form of inquiry is to develop its full potential in sport and exercise psychology.     

Studies using single-subject designs in sport psychology: 30 years of research

A prominent feature of behavior-analytic research has been the use of single-subject designs. We examined sport psychology journals and behavioral journals published during the past 30 years, and located 40 studies using single-subject designs to assess interventions for enhancing the performance of athletes and coaches. In this paper, we summarize that body of research, discuss its strengths and limitations, and identify areas for future research.     

Holistic movement practices – An emerging category of physical activity for exercise psychology

BackgroundExercise psychology has an interest in physical activity behaviour and the psychological dimensions of physical activity delivery and outcomes. Holistic movement practices (HMPs) can be defined as physical practices embedded in holistic philosophies of well-being. As such, they go beyond what is typically offered in exercise contexts to purposefully include mental, emotional, social and/or spiritual components. Traditional Eastern movement practices (e.g., Yoga, Tai Chi, Qigong) are examples of HMPs, but a range of lesser known “Western-born” HMPs (e.g., 5Rhythms, Biodanza) also exist. HMPs have not yet received much structured attention within exercise psychology.ObjectiveTo analyse the nature of HMPs and discuss their relevance to the field of exercise psychology, with a view to raising awareness of HMPs within exercise psychology as well as encouraging and supporting future research.ContentWe discuss what we see as commonalities among HMPs and argue that it is useful to treat HMPs as a category of physical activity for exercise psychology, not only because they are forms of physical activity but also because psychological dimensions are an integral and purposeful part of these practices. We provide a tentative conceptualization of HMP philosophies, with brief examples, and consider how exercise psychology's subfields of participation behaviour, delivery parameters, outcomes, and mechanisms are applicable to the study of HMPs. Last, we briefly explore research issues, including HMPs' multicomponent nature, selected potential mechanisms, and methodologies.ConclusionHMPs are part of the leisure-based physical activities landscape in many modern societies, and deserve attention by exercise psychologists. Their embeddedness in holistic philosophies and multicomponent nature provide unique opportunities and challenges for research in exercise psychology.     

The “hot hand” reconsidered: A meta-analytic approach

ObjectivesExtensive searches for the “hot hand” have been performed in a variety of sports since the pioneering study of Gilovich, Vallone, and Tversky (1985), but empirical evidence for the existence of the effect is still fairly limited. The current review reconsiders the hot hand in sports using a meta-analytic approach.DesignMean effect size and 95% confidence interval were determined using a random effects model. Heterogeneity of the mean effect size was examined applying Cochran's Q test and the “75 percent rule”.MethodTo be included in the meta-analysis, studies had to provide an empirical investigation of the hot hand phenomenon related to sport and exercise behavior. Approximately 250 papers were located, but the final dataset included only 22 publications that met inclusion criteria, with 30 studies and 56 independent effect sizes. The articles extended over a period of twenty-seven years from 1985 until 2012.ResultsThe analysis of the effects yielded a minor positive mean effect size of .02, p = .49, using a random effects model, which is sufficient evidence for arguing against the existence of the hot hand. Due to the limited sample of studies available, only a few candidate-variables could be extracted and further examined as potential moderator variables. However, none of the considered variables had the power to explain the heterogeneity of effect sizes.ConclusionsThe present study provides additional support for Gilovich et al.'s claim that a general hot hand effect probably does not exist in sport. The scientific implications of this review for prospect advances in the field are presented and discussed.     

The life of p: “Just significant” results are on the rise

Null hypothesis significance testing uses the seemingly arbitrary probability of .05 as a means of objectively determining whether a tested effect is reliable. Within recent psychological articles, research has found an overrepresentation of p values around this cut-off. The present study examined whether this overrepresentation is a product of recent pressure to publish or whether it has existed throughout psychological research. Articles published in 1965 and 2005 from two prominent psychology journals were examined. Like previous research, the frequency of p values at and just below .05 was greater than expected compared to p frequencies in other ranges. While this overrepresentation was found for values published in both 1965 and 2005, it was much greater in 2005. Additionally, p values close to but over .05 were more likely to be rounded down to, or incorrectly reported as, significant in 2005 than in 1965. Modern statistical software and an increased pressure to publish may explain this pattern. The problem may be alleviated by reduced reliance on p values and increased reporting of confidence intervals and effect sizes.